Lacto-N-biosidase
Lacto-N-biosidase is an enzyme that plays a crucial role in the metabolism of certain complex carbohydrates. It is part of the glycoside hydrolase family 20 and is involved in the breakdown of lacto-N-biose and galacto-N-biose.
Function[edit | edit source]
Lacto-N-biosidase is responsible for the hydrolysis of the terminal, non-reducing lacto-N-biose residues in lacto-N-biose type glycolipids, and galacto-N-biose in galacto-N-biose type glycolipids. This enzymatic action is essential for the metabolism of these complex carbohydrates in the body.
Structure[edit | edit source]
The enzyme is a protein that is composed of a single polypeptide chain. It has a molecular weight of approximately 80,000 Daltons. The structure of lacto-N-biosidase is similar to that of other glycoside hydrolases, with a catalytic domain and a carbohydrate-binding domain.
Clinical Significance[edit | edit source]
Deficiency in lacto-N-biosidase can lead to a variety of health problems. For example, it has been associated with congenital disorders of glycosylation, a group of metabolic disorders that affect the synthesis and attachment of glycans to proteins and lipids.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD